<template>
  <div class="app-container">
    <el-input
      v-model="filename"
      placeholder="Please enter the file name (default file)"
      style="width:300px;margin-bottom: 20px;"
      :prefix-icon="Document"
    >
    </el-input>
    <el-button
      :loading="downloadLoading"
      type="primary"
      :icon="Document"
      @click="handleDownload"
    >
      Export Zip
    </el-button>
    <el-table v-loading="listLoading" :data="list" element-loading-text="拼命加载中" border fit highlight-current-row>
      <el-table-column align="center" label="ID" width="95">
        <template #default="scope">
          {{ scope.$index }}
        </template>
      </el-table-column>
      <el-table-column label="Title">
        <template #default="scope">
          {{ scope.row.title }}
        </template>
      </el-table-column>
      <el-table-column label="Author" width="95" align="center">
        <template #default="scope">
          <el-tag>{{ scope.row.author }}</el-tag>
        </template>
      </el-table-column>
      <el-table-column label="Reading" width="115" align="center">
        <template #default="scope">
          {{ scope.row.pageviews }}
        </template>
      </el-table-column>
      <el-table-column align="center" label="Date" width="220">
        <template #default="scope">
          <i class="el-icon-time" />
          <span>{{ scope.row.display_time }}</span>
        </template>
      </el-table-column>
    </el-table>
  </div>
</template>

<script setup>
import { ref } from 'vue'
import { fetchList } from '@/api/article'
import { Document } from '@element-plus/icons-vue'

const list = ref(null)
const listLoading = ref(true)
const downloadLoading = ref(false)
const filename = ref('')

const fetchData = async() => {
  listLoading.value = true
  const { data } = await fetchList()
  list.value = data.items
  listLoading.value = false
}

const handleDownload = () => {
  downloadLoading.value = true
  import('@/vendor/Export2Zip').then(zip => {
    const tHeader = ['Id', 'Title', 'Author', 'Readings', 'Date']
    const filterVal = ['id', 'title', 'author', 'pageviews', 'display_time']
    const data = formatJson(filterVal, list.value)
    zip.export_txt_to_zip(tHeader, data, filename.value, filename.value)
    downloadLoading.value = false
  })
}

const formatJson = (filterVal, jsonData) => jsonData.map(v => filterVal.map(j => v[j]))

fetchData()

</script>

<script>
export default {
  name: 'ExportZip'
}
</script>

<style scoped>

</style>
